Re: Fuel Ventilation

[Jason Brunberg <stoopid@idirect.com>]

Paul Krucke wrote:
> 
>      I have talked to numerous mechanics etc, about this, they say it is
>      normal, but I doubt it.
> 
>      Here is the situation.  When my fuel level drops from a full tank, I
>      can hear noises coming from the fuel cap area.  I can also notice some
>      performance variations (low end).  REMOVING the fuel cap lets out some
>      major venting.  If my fuel was Champagne it would launch itself clear
>      accross the Gas station.  In fact at one point gas did shoot out of
>      the filler neck when I removed the cap.  At a 1/4 tank remaining and
>      after a driving for a few minutes removing the gas cap is followed by
>      up to 30 seconds of psssssssssssssssssssssssssssssssssssssssssss,
>      venting of the tank.
> 
>      I have tried different gas caps, my tank was replaced under the recall
>      campaing (my guess is the failure of the Scirocco II tanks venting is
>      why they fail in the first place).
> 
>      At least 5 mechanics said this was normal.  Some venting yes, but when
>      fuel jumps back out of the tank I don't think so.  This condition has
>      existed since I've owned it (5yrs), and I figure I'd throw this out to
>      the list members.
> 
>      Any comments, suggestions,
>      -Paul
> 
>      87 Scirocco 16v
>      87 Jetta GLi
>      90 90 Quattro 20v
> 
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	It's pretty common for my car to exhibit this characteristic.  I
figured that it was normal.  I have yet to have gas spew out.  Could it
be that gas was sloshing around in the tank a bit, and maybe was sent up
along the pipe?

jason
87 16V
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